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基于可处理溶液的有机半导体和CsPbCl₃量子点的光电子交联晶体管用于视觉感应器模拟和神经形态计算

Pu Guo¹, Junyao Zhang¹, Dapeng Liu¹

¹School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China.

ACS applied materials & interfaces

|October 27, 2023

概括

研究人员开发了新的光电子突触晶体管 (OST),可以模仿外周神经系统 (PNS) 的感官感知和中枢神经系统 (CNS) 的认知功能. 这些设备显示出对人工视觉和类似大脑的计算的前景.

科学领域:

有机电子学有机电子学
神经形态计算是一种神经形态计算.
人工视觉是一种人工视觉.

背景情况:

对模仿生物神经系统 (PNS和CNS) 的有机电子产品越来越感兴趣.
当前的研究往往集中在单个神经系统功能上,限制了仿生能力.
需要集成设备,将感官输入和认知处理结合起来.

研究的目的:

开发解决方案处理的光电子突触晶体管 (OST),能够同时模拟PNS和CNS功能.
创建一个模仿视觉感受器感知和中枢神经系统类型的记忆和计算的设备.
探索这些OST在人工视觉和神经形态计算中的潜力.

主要方法:

使用溶液处理方法制造光电子突触晶体管 (OST).
使用CsPbCl3量子点 (QD) 作为光活性层和有机半导体作为通道层.
研究了OST的紫外线选择性和导电性调制能力.

主要成果:

OST对紫外线有选择性反应,模仿视觉痛感受器的疼痛感知行为.
实现了1000个不同的导电状态,展示了出色的导电性调节.
证实了OST在人工神经网络中的模式识别方面的潜力.

结论:

开发了整合感官感知 (PNS) 和认知功能 (CNS) 的OST.
证明了紫外线光选择性用于疼痛感知模仿和高导电性状态用于模式识别.
它为先进的人工视觉和使用有机半导体和QDs的神经形态计算铺平了道路.

关键词:

人工突触 (Synapses) 是一个人工突触.神经形态计算是一种神经形态计算.感觉受体 (nociceptors) 是一种感觉受体.量子点是一个量子点.晶体管是一种晶体管.

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